C.S.3 Input and Output Devices

Input Devices

A. Keyboard

B. Pointing DeviceJoystick

Graphic Tablet

Cordless wheel mouse 3-button mouse

Wheel mouse for notebooksiMouse for iMac

Mouse

Light Pen

A light pen

Trackball

Touch Screen To respond when a position of the screen is touched by the fi

ngers of the user

A touch screen kit solution

C. Scanning DevicesScanner

Image Scan Edit

To recognize different kindsof input devices mouse, keyboard, bar-code reader

Text Image

OCR

To recognize differentkinds of input devices•mouse•keyboard•bar-code reader

Edit

Bar code Reader

Bar code readerread the bar codes(series of parallel vertical lines

used to assign a unique identification code to an item) and the information is then transmitted to computer for processing

An example of a bar code

Optical Character Reader

MC PaperMC Paper

MICR

Letter on Cheque

Magnetic Ink Character

MICR character set - E13B

MICR character set - CMC7

Magnetic Strip Card Reader

Smart Card Reader

Two types of smart cards and their readersTwo Types of smart cards and their readers

transmit wave signal to computer

D. Multimedia Input DevicesMicrophone

ViewCam To capture video signal and put it directly into PC for editing Can be used for video-conferencing

Digital Camera After taking pictures, the user can connect the camera

directly to a home computer, stored on disks, or sent to friends via electronic mail

Digital camera

Photo printer for digital camera

Memory card fordigital camera

Quiz

1.What kind of input device should be chosen to manage the stock in the supermarket ?

B. Point of Sale Terminal

A. Mouse

C. OMR Reader

D. Monitor

B. Point of Sale Terminal

2.Mr. Wong wants to edit a photo using his computer. What input device should he choose ?

B. Image Editing Software

A. Keyboard

C. Image Scanner

D. Mouse

C. Image Scanner

3.What is the standard input device in a computer system ?

B. Keyboard

A. Mouse

C. Monitor

D. Joystick

B. Keyboard

4.What kind of input device should be used in Video Conferencing ?

B. Point of Sale Terminal

A. WebCam

C. Digital ViewCam

D. None of the above

A. WebCam

5.Which of the following is used to recognize characters in cheque ?

B. OMR reader

A. OCR reader

C. MCR reader

D. MICR readerD. MICR reader

Output Devices

Visual Display Unit

LCDCRT

Screen Image Projector

Sound Synthesizer

Speaker

Graphic Plotter

Larger size of printout

Dot Matrix Printer

Dot Matrix Printer character formation

Ink Jet Printer

Laser Printer

Simplified mechanism of laser printer

End